Todi is located at the top of a hill, therefore it has a commanding position over the Tiber Valley; Tutere,
its ancient Etruscan name, is thought to mean "border" probably because the town marked the eastern limit of the Etruscan territories.

Mars of Todi, a Vth century BC Etruscan bronze statue found at Todi and now at Museo Gregoriano Etrusco (Vatican Museums) in Rome

Via Flaminia, the ancient road which linked Rome with Ariminium (today's Rimini) on the Adriatic Sea, crossed Umbria through two different routes; from Narni western Via Flaminia reached Carsulae (near today's San Gemini) and Todi and from there it moved towards Bevagna; eastern Via Flaminia reached Bevagna (from Narni) via Terni
and Spoleto.While over time many towns developed along eastern Via Flaminia, Todi is the only one on the western path.

(left) Ancient Walls; (right) "Nicchioni" (large niches)

The Romans had a clear idea of a town's most appropriate layout;
when the natural features of an area did not fit into this layout the Romans were ready to modify them in order to
obtain the portion of flat land needed for the town's forum (a public square surrounded by porticoes and buildings).
For this reason at many locations of Todi one can see parts of Roman walls which supported terraces.
The most impressive ones are a series of niches which for many centuries were thought to belong to a temple to Mars,
while their purpose was to support the town's upper section.

The history of Todi is similar to that of Perugia: Etruscan origin, with a long period of prosperity during the Roman Empire followed by centuries of decadence and misery. After the year 1000 Todi had a period of recovery which led
to repopulation of the town within the ancient Etruscan/Roman walls and later on to expansion of it beyond them (new walls were built in 1244).
The weakness of papal power allowed Todi to develop various forms of self-government. This period came to an end when Cardinal Gil de Albornoz restored papal rule over the whole of Umbria. In 1373, at the top of the hill,
a fortress to house a permanent garrison was built with the objective of ensuring the loyalty of Todi to the Popes.

(left): Porta Catena; (centre) Porta Perugina; (right) Porta Romana

Todi has many gates: Porta Catena is decorated with an eagle, the symbol of Todi: it is part of the walls built by the Romans when they enlarged the Etruscan town, but it was largely modified in medieval times.
Porta Perugina and Porta Romana belong to the 1244 walls, but the latter was given a
Renaissance appearance by Pope Gregory XIII (1572-83).

Priori (the first citizens) were usually the leaders of the most important guilds;
in the Comuni complex system of check and balances the Priori gave voice to the
needs of the economy. Their palace in Todi was built in 1334-47 around an existing tower. The faēade was modified in 1513 by Cardinal Antonio Del Monte, uncle of Pope Julius III. The merlons are of the Guelph type.

Todi knew a period of growth when Angelo Cesi became the bishop of the town (1566-1606); the Cesi
were Dukes of Acquasparta and a very rich family. Angelo Cesi embellished Todi with an elegant fountain, a renovated Bishop's palace and a family palace. In Rome he promoted the
construction of S. Maria in Vallicella.